Graceful handling of remote ssh connection errors.
Graceful handling of remote ssh connection errors.

Handle exception gracefully when sftp/ssh connection to the webserver failed.
relay manager shouldnt allowed to try copying when the sftp connection is not
established.

Signed-off-by: Sugesh Chandran <dc89b2f09e5fde6c7ca6b106c22fcc7affc98a48@gmail.com>

sugchand/neoview-middle-box,sugchand/neoview-middle-box,sugchand/neoview-middle-box